Military device manufacturer discloses cyber incident to SEC

IEH Corporation disclosed a phishing-driven compromise of an employee email inbox that exposed email messages, attachments, customer communications, purchase orders, engineering documentation, and potentially export-controlled technical information for a period while the mailbox was accessed by an unauthorized party. The company reported finding the intrusion quickly, is securing the mailbox and preserving evidence, and stated there is currently no evidence of data removal or impact to business operations while the investigation continues.